Roles › Manufacturing Engineering CO OP
Aurora, IL
Manufacturing Engineering CO OP jobs in Aurora, IL
3 open roles from 1 employer. Checked Oct 6, 2026.
What these openings look like
All 3 are at Entegris. Every one publishes a pay range, and they run $20.00 to $30.00 an hour. Every posting is full time. The most recent went up on Sep 11, 2026.
Every listing links to the employer's own application. Nothing is posted here on their behalf, and nothing is reposted from anywhere else.
Open roles
What it pays here
Only some employers publish a range. These are the ones that did, as written in their own postings:
- $20.00–$30.00 an hour
What they ask manufacturing engineering co op candidates here
Drawn from the 3 open postings on this page. The ones that come up across several employers are near the top.
You'll be refreshing SOPs, batch cards, and work instructions for the Slurries lines. How would you find out whether a document matches what operators actually do?
What they are checking: Whether they would go to the floor and talk to operators rather than editing documents from a desk.
What makes a work instruction easy for an operator to follow on a busy shift?
What they are checking: Whether they understand clear steps, visuals, and plain language matter more than technical completeness.
Tell me about a time you had to get feedback or approval from several people. How did you keep it moving?
What they are checking: Whether they can drive documents through review and approval without letting them stall.
What do you know about mixing, blending, and filling processes, and what could go wrong in each?
What they are checking: Whether they have basic process thinking about where variation and errors come from in slurry manufacturing.
How would you use process and quality data to support an investigation into an out-of-spec batch?
What they are checking: Whether they know how to look for patterns and compare to normal batches instead of guessing at causes.
An operator tells you the official procedure is wrong and they've been doing it differently for years. What do you do?
What they are checking: Whether they listen seriously, check with engineering and quality, and avoid both blind trust and dismissal.
Describe a project where you had to be very organized to track many small pieces.
What they are checking: Whether they can systematically manage a large documentation refresh without losing track.
Why does accurate documentation matter so much in chemical manufacturing for semiconductor customers?
What they are checking: Whether they understand the link between documented process, consistency, and customer trust in high-purity materials.
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